2005, Volume 7, Issue 4
Strategic Study of CAE >> 2005, Volume 7, Issue 4
Research on Nonlinear Combination Forecasting Approach Based on BP-AGA
1. Humanities & Economics College of Hefei University of Technology , Hefei 230009 , China
2. Civil Engineering College of Hefei University of Technology , Hefei 230009 , China
Next Previous
Abstract
A nonlinear combination forecasting model was established by using neural network and accelerating genetic algorithm (AGA) in the paper. AGA was used to optimize the network parameters as BP approach was slow with training network. Optimization results of AGA were taken as original values of BP approach, the network was trained with BP approach. Network convergence rate was increased with running BP approach and AGA alternately. Meanwhile the part least problem was improved. Examples were presented finally, as a result, the forecasting precision high in evidence.
Keywords
neural network ; accelerating genetic algorithm ; nonlinear combination forecasting ; forecasting precision
Figures
图1
References
[ 1 ] 唐小我.经济预测与决策的新方法及其应用研究[M ].成都:电子科技大学出版社, 1997.9～57, 125～126 link1
[ 2 ] 王 硕, 唐小我, 曾 勇.基于加速遗传算法的组合预测方法研究[J].科研管理, 2002, 23 (3) :118～121 link1
[ 3 ] 王 硕, 唐小我.组合预测软科学方法研究[J].运筹与管理, 1999, 8 (1) :83～86 link1
[ 4 ] 王 硕, 唐小我.组合预测系统综合研究[J].科学 管理研究, 2000, 18 (4) :42～45 link1
[ 5 ] 金菊良, 丁 晶.水资源系统工程[M ].成都:四川科学技术出版社, 2002:79～101 link1
京公网安备 11010502051620号
